Finding the Fourth Proportional to 1,202,698.16, 1,658,578.20 and 719,184.56
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Solution
The fourth proportional to 1,202,698.16, 1,658,578.20 and 719,184.56 is: 991,789.85
Step by Step Solution
- Step 1: Write the proportion equation
1,202,698.16 : 1,658,578.20 = 719,184.56 : x - Step 2: Convert to fraction form
1,202,698.16/1,658,578.20 = 719,184.56/x - Step 3: Cross multiply
1,202,698.16x = 1,658,578.20 × 719,184.56 - Step 4: Simplify right side
1,202,698.16x = 1,192,823,832,992.59 - Step 5: Solve for x
x = 1,192,823,832,992.59/1,202,698.16 - Step 6: Final answer
x = 991,789.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.